通过agent方式做字节码增强引起ClassLoader.loadClass加载Narhon引擎时报错Nest-host class_info_index 21 has bad constant type

[howardliu-cn]

启动参数：-javaagent:transmittable-thread-local-2.12.1.jar

运行时报错：Caused by: java.lang.ClassFormatError: Nest-host class_info_index 21 has bad constant type in class file jdk/nashorn/internal/codegen/OptimisticTypesPersistence$5

代码：

ScriptEngineManager manager = new ScriptEngineManager();
ScriptEngine engine = manager.getEngineByName("JavaScript");
Object result = engine.eval(formula);

异常栈:

Caused by: java.lang.ClassFormatError: Nest-host class_info_index 21 has bad constant type in class file jdk/nashorn/internal/codegen/OptimisticTypesPersistence$5
    at java.base/java.lang.ClassLoader.defineClass2(Native Method)
    at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1109)
    at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:206)
    at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:759)
    at java.base/jdk.internal.loader.BuiltinClassLoader.findClassInModuleOrNull(BuiltinClassLoader.java:680)
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:605)
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:579)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
    at jdk.scripting.nashorn/jdk.nashorn.internal.runtime.RecompilableScriptFunctionData.getCompiler(RecompilableScriptFunctionData.java:669)
    at jdk.scripting.nashorn/jdk.nashorn.internal.runtime.RecompilableScriptFunctionData.getCompiler(RecompilableScriptFunctionData.java:650)
    at jdk.scripting.nashorn/jdk.nashorn.internal.runtime.RecompilableScriptFunctionData.compileTypeSpecialization(RecompilableScriptFunctionData.java:726)
    at jdk.scripting.nashorn/jdk.nashorn.internal.runtime.RecompilableScriptFunctionData.getBest(RecompilableScriptFunctionData.java:907)
    at jdk.scripting.nashorn/jdk.nashorn.internal.runtime.ScriptFunctionData.getGeneric(ScriptFunctionData.java:402)
    at jdk.scripting.nashorn/jdk.nashorn.internal.runtime.ScriptFunctionData.createGenericInvoker(ScriptFunctionData.java:297)
    at jdk.scripting.nashorn/jdk.nashorn.internal.runtime.ScriptFunctionData.getGenericInvoker(ScriptFunctionData.java:291)
    at jdk.scripting.nashorn/jdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:638)
    at jdk.scripting.nashorn/jdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
    at jdk.scripting.nashorn/jdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:527)
    at jdk.scripting.nashorn/jdk.nashorn.api.scripting.NashornScriptEngine.evalImpl(NashornScriptEngine.java:456)
    at jdk.scripting.nashorn/jdk.nashorn.api.scripting.NashornScriptEngine.evalImpl(NashornScriptEngine.java:413)
    at jdk.scripting.nashorn/jdk.nashorn.api.scripting.NashornScriptEngine.evalImpl(NashornScriptEngine.java:409)
    at jdk.scripting.nashorn/jdk.nashorn.api.scripting.NashornScriptEngine.eval(NashornScriptEngine.java:162)
    at java.scripting/javax.script.AbstractScriptEngine.eval(AbstractScriptEngine.java:264)

删除这个agent就能够表现正常。

[oldratlee]

搜索了一下，应该要升级javassist。

@howardliu-cn 可以改一下TTL的POM：

• 升级java到 8
• 升级javassist到最新版本

打个TTL包试一下能不能解决问题。

如果 OK，我发布个TTL新版本出来。

[oldratlee]

@howardliu-cn 发布了v2.13.0，升级试一下；看看问题解决没有？ ❤️

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>transmittable-thread-local</artifactId>
    <version>2.13.0</version>
</dependency>

Release Note:
https://github.com/alibaba/transmittable-thread-local/releases/tag/v2.13.0

[oldratlee]

@howardliu-cn 先 close 了。如有问题可以继续讨论 ❤️

[howardliu-cn]

多谢，线下环境已验证可行，今晚线上环境验证一下。

[howardliu-cn]

已在线上验证，可行